代码如下public class ListArticleAction extends Action{
public ActionForward execute(ActionMapping mapping,ActionForm form,
HttpServletRequest request,HttpServletResponse response){
Connection conn = null;
try{
conn = getDataSource(request,"sqlServer").getConnection();
articleBean abean = new articleBean();
abean.setConn(conn);
List data = abean.ListArticle();
request.setAttribute("articleList",data);
return mapping.findForward("success");
}catch(SQLException e){
e.printStackTrace();
return mapping.findForward("failed");
}

}<%@ page language="java" import="java.util.*" pageEncoding="UTF-8" contentType="text/html;charset=UTF-8"%>
<%@ taglib uri="http://struts.apache.org/tags-bean"prefix="bean" %>
<%@ taglib uri="http://struts.apache.org/tags-html"prefix="html" %>
<%@ taglib uri="http://struts.apache.org/tags-logic"prefix="logic" %><!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
  <head>
  
  </head>
  
  <body>
   <html:form method="post" action="/listarticle.do">
   <div>
   <table>
   <tr><h2>文章预览</h2></tr>
   <logic:present name="articleList">
   <logic:iterate name="articleList" id="article">
   <tr>
   <td><html:link page="/article.do"><bean:write name="article" property="tilte"/></html:link></td>
   <td><html:link page="/editarticle.do" paramId="article_id" paramName="article" paramProperty="article_id">编辑</html:link></td>
   <td><html:link page="/delarticle.do" paramId="article_id" paramName="article" paramProperty="article_id">删除</html:link></td>
   </tr>
   <tr><bean:write name="article" property="truncate_note"/></tr>
   <tr>
   <td>作者:</td><td><bean:write name="article" property="autor"/></td>
   <td>&nbsp;分类:</td><td><bean:write name="article" property="article_class"/></td>
   <td>&nbsp;时间:</td><td><bean:write name="article" property="article_time"/></td>
   </tr>
   <hr/>
   </logic:iterate>
   </logic:present>
   <logic:notPresent name="articleList">
   <tr>未添文章!</tr>
   </logic:notPresent>
   </table>
   <div>
   <html:link page="/addarticle.jsp">增加文章</html:link>
   </div>
   </div>
   </html:form>
  </body>
</html>
数据库中已有数据,其它的配置都已完成,但页中查找不到数据库数据。